Improvement in tack-driving machines for boots and shoes



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Tack-Driving Machines for Boots aqd Shoes. N0 ]56,()47 Patented0ct.20,1874.

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Tack-Driving Machines for Boots and Shoes. No. 156,047, Patented Oct.20,1874.

Wham. n we "Z021 r 5 Sheets--Sheet 3. H. G. THUMPSON & B. F. BEBG'H.Tack-Driving Machines for Boats and Shoes.

Patented Oct. 20,1874.

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'H. G. THOMPSDNR; B. F. BEBGH. Tack-Driving Machines for Boots andShoes.

No. 156 041 1 Patented Oct. 20,1874.

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Tack-Driving Machines for Bootsand Shoes. 7 N0.l56,047. Patented0ct.20,1874.

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TNE RAPHIC CO. PHOTO -LITH.35 & H PARK PLACE, N-Y.

UNITED STATES HENRY G. THOMPSON AND BROR F. BERGH, OF MILFORD,CONNECTICUT;

PATENT OFFICE.

SAID BERGH ASSIGNOR OF ALL HIS RIGHT TO SAID THOMPSON.

IMPROVEMENT IN TACK-DRIVING MACHINES FORBOOTS AND SHOES.

Specification forming part of Letters Patent No. 156,047, dated0ctober20, 1874; application filed July 2, 1874.

To all whom it may concern:

Be it known that we, H. G. THOMPSON and B. F. BERGH, of Milford, countyof New Haven and State of Connecticut, have invented certain new anduseful Improvements in Tack- Driving Machine for Boots and Shoes, ofwhich the following is a specification:

The nature of our invention consists in the construction and arrangementof a tack-driving machine for boots and shoes and other purposes, aswill be hereinafter more fully set forth.

In order to enable others skilled in the art to which our inventionappertains to make and use the same, we will now proceed to describe,

its construction and operation, referring to the annexed drawings, inwhich- Figure 1 is a side elevation of that part of our machine Whichcontains the entire tackdriving mechanism. Fig. 2 is a side elevation ofthe bottom part of the machine, containing the devices for holding thelast and a clutchpulley for operating the feeding-cylinder. Fig. 3 is aninterior view of said bottom part of the machine. Fig. 4 is a verticalsection of the same through the line 2 z, Fig. 3. Figs. 5 and 6 aredetached views of parts of the clutchpulley. Fig. 7 is an enlargedlongitudinal section through the feeding-cylinder. Fig.8 shows a part ofthe feeding device. Fig. 9 is a side view of the stationary head of thecylinder. Fig. 10 is a cross-section of the feeding-cylinder through theline .90 m, Fig. 7. Fig. 11 is a front view of the stationary head,showing section through incline H at y 3 Fig. 7. Fig. 12 is a front viewof the hammer. Fig. 13 is a side view of the same, partly in section,including the devices immediately connected therewith.

A represents the main standard of the tackdriving mechanism, the upperend of which is curved forward to form the upper bearing for thevertically-operating hammer, the lower bearing for the same being formedin the front end of an arm, B, projecting from the standard. Below thisarm B is the feeding-cylinder, composed of a back head, C, with hub Dentering a recess in the front of the standard A. From the front of thehead C projects the shell E, the front end of which fits over a shoulderon the front stationary head G. This head is secured to the incline Hpassing through it, which incline is grooved on its upper edge to formthe tack-channel a. The incline H is composed of several distinctangles, as shown in Fig. 7, the tack-channel running at an angle ofabout forty-five degrees within the cylinder and through the head G, andata certain distance from said head the incline and channel are steeperto cause each tack in succession to drop rapidly down to the extremefront end of the channel, which is horizontal. The incline H is, by arod, I, connected with the cam-arms J, which operate the feedingcylinder back and forth. The rod I is screwed into the rear end of theincline, and likewise screwed into an oscillating nut, 11, between thetwo cam-arms J, whereby said rod is rendered adjustable for the purposeof giving the desired movement of the incline to and from the hammer. Onthe back of the standard A, below the connecting-rod I, is a verticaltube, d, containing a spiral spring, e, upon which is placed a pin, f,having its upper end beveled on both sides to form an edge, which isheld by the spring against and across the screw-threads on the rod I,and forms a rattler for the purpose of imparting a jarring motion to theincline, thereby causing the tacks'to slide down the same to theseparator. The stationary head G is funnel-shaped on the inside of thecylinder E for the purpose of preventing the tacks choking up the outletof the incline, and for carrying back to the rear of thefeeding-cylinder surplus tacks, to be again raised by the buckets orwings g on the inside of the cylinder preparatory to being dropped onthe apron that feeds the incline. At a suitable point in thetack-channel a of the incline H is a spring-pin, t, on each side,

as shown in Fig. 11, for the purpose of arresting the downward movementof the tacks at such point prior to their separation. The inner ends ofthese pins are beveled or pointed to allow the tacks, when moved by thefeeding device, to force them outward and pass them. The incline H ismade of any nonmagnetic material, and at the point where the separationof the tacks takes place a hardened seat, h, is inlaid into the incline,upon which pointer is used as the medium for holding and.

moving each tack by its pressure upon the head of the same, and may bemade of any material suitable for the purpose. At the foot ortermination of the incline H is formed a recess or cup, in, as shown inFig. 9, for the purpose of stopping, holding, and presenting the tack tothe hammer.

In a slot in the stationary head G, within the cylinder E, is pivoted abrush, it, held by a spring, a, as shown in Fig. 10. Upon the 'inside'ofthe cylinder E are pins 11?, which, as.

the cylinder revolves, strike the upper end of the brush, and turn it toone side, the springa at once returning it to its former position.

The brush it thus sweeps back and forth immediately at or above theoutlet of the incline H for the purpose of keeping the track free fromobstructions. The track -channel a in the incline H, at or near the rearend, extends through to the bottom, and is larger underneath than at thetop, as shown in Fig. 10, for the purpose of permitting false orimperfect tacks to drop out and prevent clogging up. L represents thehammer, the upper end of which extends up into an adjustablescrewsleeve, M, fastened in the upperend of the standard A. In thissleeve is a spiral spring, 19, which is placed and compressed upon thetop of the hammer for the purpose of increasing or diminishing thedistance between the head of the tack in the presentation-cup at foot ofincline and point of hammer which receives the same, and also forthc'purpose of doing away with the concussion consequent upon the returnstroke of the hammer when the machine is running at high speed. Nrepresents a loose sleeve surrounding the hammer L, to which sleeve areattached the rods 0, connecting it with the operating-lever P. Withinthis sleeve is a spiral spring, 8, against which an adjustable collar,t, on the hammer,

strikes at the down-stroke thereof. This spring operates as a cushion torelieve the machine: from the jar of the'downward stroke, and elevatesthe hammer in advance of the regular movement of the parts, and alsocompresses the spring 1) on top of the hammer in advance of the regularmovement of the parts. Below the sleeve N is another spiral spring, 8adjusted by a collar, 25, for increasing or diminishing the force of theblow imparted to the hammer. The three springs 19, s, and 8 thus operatein conjunction to regulate the han1- mer and make the machine run easy.The

steel-pointer 7c is attached or placed in a pivoted plate, 70, in thefeeding device K, which plate has a pin, 2;, entering a slot, w, in anlever P for operating the same.

arm, B. This slot is made in such a manner as to operate the pointer orseparator to cause the tacks to slide down the incline to the receiver mon the backward movement of the cylinder.

The feeding device also acts as a guard to 'prevent tacks from movingout of position consequent upon the jar caused to the machine by blowsfrom a hammer in the hands of the operator while fitting the upper forreceiving tacks.

In the standard A, below the feeding-cylinder, is a horizontalscrew-rod, .r, forked or slotted at its outer end to receive a slottedplate, y, adjusted up and down by means of ascrew, 2. This plate acts asa guide or rest for the purpose of enabling the operator to drive tacksat any desired distance from the outer edge of the last. S representsthe base of the machine, provided with a projecting arm, T, in the endof which is formed a balland-socket joint, 0/, for connecting the rod V,

that supports the jackW for holding the last. In the rod Vis aslip-joint at b for raising and lowering the jack. The jack W is thewellknown Baileys jack, patented July 29, 1856. 'In the base S, insuitable bearings, is a shaft,

d, upon the inner-end of which is a wheel, A,

provided with a crank-pin, c. This crank-pin works in a slotted lever,B, pivoted at one end to a post in the base, and to the other end ispivoted a rod, O, which connects with the On the outer end of the shaftd is placed the band-wheel l), to which the power is connected. Thiswheel is placed loosely on the shaft, and is,by a peculiarly-arrangedclutch, connected with a pulley, G, which connects,by a belt, f,with thehead 0 of the feeding-cylinder. In the hub of the wheel D is formed acircular recess, h, concentric with the wheel, and within the same is aseries of notches, t", as shown in Fig. 5. On-the side of the pulley Gis pivoted an arm, m, provided with a cam-shaped projection, a, which isto enter the notches t". This arm is held by a spring, 01?, against apin or stop, 19 when the clutch is in gear. If, however, the arm m israised from this pin to and against a pin, 11, the projection 42 will bemoved out of the notch 2", throwing it out of gear. On the side of theboxing for the shaft d is a tube containing a spring-bolt, s, whichextends across the opening between the pulley G and the hub of the wheelD, and forms a stop for the arm m to lift it from the pin p and throw itout of gear. By means of a treadle, E, and elbow'lever H, the bolt S isdrawn back, when the spring a at once throws the clutch in gear again.

By this device an intermittent motion may be given to the feeding-cylinder, and the tacks fed on the incline only when the machine isoperatedfor presenting tacks to the hammer.

The operation of this machine is substantially the same as described inanother application for patent heretofore filed.

By the downward movement of the rear end of the operating-lever P thehammer L is raised and caught by a spring-bolt in the arm B of theframe. At the same time the feeding-cylinder is, by the cam-levers J,moved forward, presenting a tack in the cup m to the hammer, which tackis instantly drawn to it by the magnetic influence'of the hammer. At theupward stroke of the rear end of the lever P the feeding-cylinder isdrawn backward, during which movement the steel pointer It draws orpushes one tack beyond the springpins M, which held it, so as to slidedown the incline into the cup m, to be presented to the hammer at thenext forward movement of the cylinder. As the front end of the lever Pdescends, it releases the hammer L, and this is by the spring 19 thrownforcibly downward to force the tack into the boot or shoe, and thehammer is instantaneously raised a certain distance by the action of thespring .9 within the sleeve N. The feeding-cylinder in this case isrevolved by the belt f, as above described, and the last is held by theoperator close up against the guide or rest y, the operator having hisfoot upon the trea-dle E.

To stop the movements of the machine, the operator has only to removehis foot from said treadle, as above described.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. In a tack-driving machine, an adjustable rod, I, in combination withthe incline H and cam-levers J, substantially as and for the purposeherein set forth.

2. 111 a tack-driving machine, the rattler f, in combination with therod 1, for the purposes herein set forth.

3. The stationary head G of the feedingcylinder 0 E, made funnel-shapedwithin said cylinder, for the purposes herein set forth.

4. One or more spring-pins, 1', arranged in the incline of atack-driving machine, for the purposes herein set forth.

5. In a tack-driving machine, a hardened seat, h, inlaid into anon-magnetic incline, for the purposes herein set forth.

6. In a tack-driving machine, a hardened pointer, K, for holding andmoving each tack, as specified.

7. In a tack-driving machine, the recess or cup m at the foot of thevibrating incline H, and forming a part of the same, substantially asshown, and for the purpose specified.

8. The combination, with the stationary head G and incline H, of feedingdevice and arm It, substantially as shown, all arranged and operating soas to cause the tacks to slide down the incline to a receiver on thebackward movement of the cylinder.

9. In a tack-driving machine, the combina tion of the clutch-pulley Gand belt f and head 0, substantially as shown and described, wherebytacks are fed upon an incline, when the machine is operated, forpresenting the tacks to the hammer. p

10. The wheel D, with recess h and notches i, in combination with thepulley G, arm on, with projection 12 spring W, and stops 19 19 allsubstantially as and for the purposes herein set forth.

11. In a tack-driving machine, a guide, x y 2, having an outer edgecurved to overcome the irregularity existing in the different parts ofthe last, thereby enabling the operator to drive tacks through the upperat an equal distance from the inner sole throughout the shoe,substantially as shown and described.

12. The sleeve N, with spring s within the same, in combination with thehammer used for driving tacks, substantially as and for the purposesherein set forth.

13. In a taclgdriving machine, the combination of spiral spring 12 ontop of hammer with spiral spring 8, when used in sleeve of hammer,substantially as herein set forth.

14. In a tack-driving machine, the combination of the spring 8, sleeveN, collar t, and hammer L with the sleeve M and spring 1), all arrangedand operating to compress spring p in advance of the regular movement ofthe parts, substantially as herein set forth.

15. The combination, with the stationary head G and revolving cylinderE, of the pivoted brush n, spring 12., and pins 02 all constructedsubstantially as and for the purposes herein set forth.

16. The combination of spiral springs p s and 8 applied to a hammer fordriving tacks, for the purpose of accomplishing the difierent functionsherein set forth.

In testimony that we claim the foregoing as our invention we hereuntoaffix our signatures this 23d day of June, 1874.

HENRY G. THOMPSON. B. F. BERGH.

Witnesses:

FRANK L. ALLIs, ALBERT A. BALDWIN.

